And as before, Show Slow supports, YSlow, Page Speed (both, extension and now API) and dynaTrace AJAXbeacons as well as HAR beacon, custom metric beacons (for all your custom data) and last, but not least, event records to annotate the timeline with information about code releases, configuration changes and so on so you can make most sense of your web performance information.

That being said, it’s very easy to add more tools to the mix – if you have a tool that can provide useful data for web performance tracking, it is a good candidate for inclusion into Show Slow. If you have questions, just ask them on the mailing list or just go and contribute your changes!

A few months ago we also moved to Git and are hosted on Github now. This means that it became much easier for members of our community to supply patches and I’d like to thank them all for doing so and invite you all to go and fork the project – it’s easy to make your changes without the fear of breaking stuff and even easier to participate in open source community around Show Slow!

I was given a chance to work on it before it was released to general public and was very happy to get such a tool as it make it the easiest option when it come to setting up ShowSlow instance with automated testing.

Basically, all you need to do is to call a beacon URL when you need to run Page Speed test and store results in ShowSlow. Data is stored in the same tables as browser extension beacon data and works pretty smoothly.

Configuration is pretty easy, check out documentation on the wiki or just open /beacons/pagespeed/ on your instance for auto-documentation.

I hope to add UI for it and integrate it with URL adding interface in a near future.

Velocity schedule is published and I’m happy to say that I’m taking part in opening the conference as part of Performance Tools workshop with Steve Souders, Patrick Meenan (WebPageTest) and Alois Reitbauer (dynaTrace AJAX Edition).

It’s going to be a good tool walk-through from the creators of the tools and I’ll talk about setting up your own instance of Show Slow to collect the metrics over time and how it can be used as a dashboard for your performance optimization initiative.